Audi S4 (2008) – fuse box diagram
Year of production: 2008
Instrument panel (driver’s side)
Fuse carrier (black)
| Number | Electrical equipment | Ampere ratchets [A]. |
| 1 | Dynamic control | 5 |
| 2 | Clutch sensor | 5 |
| 3 | Garage door opener | 5 |
| 4 | Audi lane assist | 10 |
| 5 | Air conditioner | 5 |
| 6 | Headlight range control (right) | 5 |
| 7 | Headlight range control (left) | 5 |
| 8 | Control unit 1 of the vehicle’s electrical system | 5 |
| 9 | Interior mirrors | 5 |
| 10 | Selector gate | 5 |
| 11 | Heated washer nozzles | 5 |
| 12 | Air conditioner | 5 |
Fuse carrier (brown)
| Number | Electrical equipment | Ampere ratchets [A] |
| 1 | – | – |
| 2 | Clutch sensor | 5 |
| 3 | Fuel pump (diesel / gasoline) | 20 |
| 25 | ||
| 4 | Auxiliary water pump (3.2 FSI) | 5 |
| 5 | Seat heating (left side) with / without seat ventilation | 30 |
| 6 | Electronic stabilization program | 10 |
| 7 | Horn | 25 |
| 8 | Electric window motor (left door) | 30 |
| 9 | Wiper motor | 30 |
| 10 | Electronic stabilization program | 25 |
| 11 | Door controller (driver side) | 15 |
| 12 | Rain and light sensor | 5 |
Fuse carrier (red)
| Number | Electrical equipment | Ampere ratchets [A]. |
| 1 | – | – |
| 2 | – | – |
| 3 | Lumbar support | 10 |
| 4 | Dynamic steering | 35 |
| 5 | Internal light | 5 |
| 6 | Control unit 1 of the vehicle’s electrical system | 35 |
| 7 | Control unit 1 of the vehicle’s electrical system | 30 |
| 8 | Control unit 1 of the vehicle’s electrical system | 30 |
| 9 | Panoramic tilt roof / sun roof | 20 |
| 10 | Control unit 1 of the vehicle’s electrical system | 30 |
| 11 | – | – |
| 12 | Convenient electronics | 5 |
Instrument panel (passenger side)
Fuse carrier (black)
| Number | Electrical equipment | Ampere ratchets [A]. |
| 1 | – | – |
| 2 | – | – |
| 3 | – | – |
| 4 | – | – |
| 5 | Steering column switch module | 5 |
| 6 | Electronic stabilization program | 5 |
| 7 | Diagnostic connector | 5 |
| 8 | Gateway (diagnostic interface for data bus) | 5 |
| 9 | – | – |
| 10 | – | – |
| 11 | – | – |
| 12 | – | – |
Fuse carrier (brown)
| Number | Electrical equipment | Ampere ratchets [A] |
| 1 | CD drive | 5 |
| 2 | Switch module for Audi drive select | 5 |
| 3 | MMI / Radio | 10 |
| 20 | ||
| 4 | Light switch | 5 |
| 5 | Instrument cluster control unit | 5 |
| 6 | Ignition lock | 5 |
| 7 | – | – |
| 8 | Air conditioner blower | 40 |
| 9 | Steering column lock | 5 |
| 10 | Air conditioner | 10 |
| 11 | Diagnostic connector | 10 |
| 12 | Steering column switch module | 5 |
Luggage carrier
Fuse carrier (black)
| Number | Electrical equipment | Ampere ratchets [A] |
| 1 | – | – |
| 2 | Trailer control unit | 15 |
| 3 | Control unit for trailer | 20 |
| 4 | Control unit for trailer | 20 |
| 5 | Electronic parking brake | 5 |
| 6 | Electronic suspension control | 15 |
| 7 | Electromechanical parking brake | 30 |
| 8 | Control unit 2 for the vehicle’s electrical system | 30 |
| 9 | – | – |
| 10 | Control unit 2 for the vehicle’s electrical system | 30 |
| 11 | Control unit 2 for vehicle electrical system | 20 |
| 12 | – | – |
Fuse carrier (brown)
| Number | Electrical equipment | Ampere ratchets [A] |
| 1 | Electrical socket | 15 |
| 2 | – | – |
| 3 | Radio / navigation | 7,5 |
| 4 | Control unit for digital sound system | 30 |
| 5 | MMI | 5 |
| 6 | Door controller (driver side) | 30 |
| 7 | Electromechanical parking brake | 30 |
| 8 | Rear seat heating | 30 |
| 9 | Door control unit (passenger side) | 30 |
| 10 | Remote control receiver for parking heater | 5 |
| 11 | Door control unit (passenger side) | 15 |
| 12 | Control unit for reversing camera | 5 |
Fuse carrier (red)
| Number | Electrical equipment | Ampere ratchet [A] |
| 1 | Rear center console socket | 15 |
| 2 | Front center console socket | 15 |
| 3 | Socket, trunk | 15 |
| 4 | Cigarette lighter | 15 |
| 5 | Parking assistance | 5 |
| 6 | Phone pre-installation without handsfree (VDA interface) | 5 |
| 7 | Control unit for adaptive cruise control | 15 |
| 8 | – | – |
| 9 | EPB (electromechanical parking brake) switch | 5 |
| 10 | Lane change assistant function | 5 |
| 11 | Rear seat heating | 5 |
| 12 | Airbag | 5 |